VS Code does not respect the diff flag in .gitattributes

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.69.0
• OS Version: Windows 10.0.1.19044

Steps to Reproduce:

1. Open a local git repository in vscode

2. Make changes to a file 1.txt, and then add this simple .gitattributes file:

    *.txt -diff
   

3. Confirm output of git diff on the terminal: Binary files a/1.txt and b/1.txt differ

4. View the diff from VS Code Source Control panel.

Expected output:

VS Code source control panel shows “No preview available, binary files a/1.txt and b/1.txt differ” or a similar message.

Actual output:

VS Code shows the plaintext diff.

Context: I intend to unset the diff flag for certain large auto-generated files in my project. If I accidentally open their diff on the VS Code Source Control, currently, there is a noticeable lag (less than a second) and the rendered diff itself is unusable anyway. So, I’d prefer if VS Code just didn’t attempt to display the diff in the first place.

Cross-ref: SO post that I made two weeks ago about the same issue.

[GaurangTandon]

Nice catch. I had written 1.6.90 instead of 1.69.0, fixed now.

[lszomoru]

@GaurangTandon, sorry this issue got lost in my notifications. I will try to take a quick look later this week.